JPH0575673U - Waveform storage - Google Patents

Abstract

(57) [Abstract] [Purpose] To realize a waveform measuring apparatus having a configuration having a waveform display section enlarging / reducing function. [Structure] A front end, an A / D converter, an acquisition memory, a means for selecting a menu or the like by inputting settings from the outside, and a screen area for displaying a waveform and a menu or the like from the selection menu or the like. The menu allocating means that calculates the position and the size of the area for displaying, and the position and the size of the screen area for displaying the waveform and the area for displaying the menu etc. from the input of the setting from the outside. Magnification selecting means, a display data generating circuit, a display memory for storing data from the display data generating circuit, and a display for displaying the output from the display data circuit are provided, and the size and screen of the waveform display area are provided. The waveform measuring device is characterized in that the upper position can be selected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a display screen of a digital oscilloscope.

[0002]

[Prior Art]

 When the menu is displayed on the digital oscilloscope, the display state of the screen is such that the measured waveform is displayed in the full display area of the display, and other display information such as setting information and measure values is overlaid on the displayed waveform. In some cases, the area for displaying the screen waveform and the area for displaying information other than the waveform are divided in advance. With regard to, there is a drawback that part or all of the waveform to be displayed is covered by the display information other than the waveform, and regarding to, since the area is determined even if it is not necessary to display anything other than the waveform, The display cannot display the waveform in the full display area.

[0003]

[Problems to be solved by the device]

 For this reason, there is a problem that the display on the screen cannot be fully utilized depending on the display state of the menu and the like. The present invention solves such a problem, and when the information other than the waveform is displayed by arbitrarily setting the size of the display portion that displays the waveform measured by the waveform measurement device, the waveform display portion is The objective is to realize a device that can be displayed in a reduced and vacant display area and in which the waveform is not obscured by information other than the waveform at all times.

[0004]

[Means for Solving the Problems]

 The present invention includes a front end that attenuates and amplifies an amplitude voltage of an input signal or selects an input frequency, and an analog / digital converter that inputs an analog signal from the front end and converts the analog signal into a digital value. An acquisition memory that stores digital values from the analog / digital converter, a menu setting unit that selects a menu for signal processing by inputting settings from the outside, and a waveform display using the signal from the menu setting unit. Therefore, the menu allocation means that calculates the position and size of the screen area and the area for displaying the menu, etc., and the screen area for displaying the waveform and the area for displaying the menu etc. from the input of the setting from the outside Input a digital value from the acquisition memory and a magnification selection means for calculating the position and size of A display data generating circuit for performing a calculation for setting a screen size or the like by a signal from the menu allocating means or a magnification selecting means, and a display memory for storing the data from the display data generating circuit. And a display for displaying the data stored in the display memory and output as a display data signal through the display data generation circuit, and select the size of the waveform display area and the position on the screen. It is a waveform measuring device characterized in that it is made possible.

[0005]

[Action]

 When information other than the waveform is displayed by arbitrarily setting the size of the display part that displays the waveform measured by the waveform measurement device, the waveform display part should be reduced and displayed on the empty display part. You can

[0006]

【Example】

 Hereinafter, the present invention will be described in detail with reference to FIG. FIG. 1 is a basic configuration diagram of an embodiment of the present invention. In the figure, reference numeral 1 is a front end, which is a front end for processing such as attenuation, amplification, coupling, and analog filter of an input signal. Reference numeral 2 is an analog / digital converter (hereinafter referred to as an A / D converter), which converts the analog signal input from the front end 1 into a digital value. An acquisition memory 3 stores the digital data input from the A / D converter 2. A display memory 4 stores display data such as waveform data, text data and graphic data. Reference numeral 5 denotes a display data generating circuit, which is a signal from the menu allocating means 7 or the magnification selecting means 8 for enlarging or reducing the waveform display area, synthesizing text data for menu display, graphic data for waveform display, etc. I do. Also, display data is output to the display unit 9. Reference numeral 6 is a menu setting means for selecting a menu or the like by an input means for setting from the outside such as a keyboard. The menu allocating means 7 judges the menu or the like set by the menu setting means 6, and performs arithmetic processing to determine where and how large the waveform is displayed by the menu or the like. The magnification selection means 8 is means for directly selecting the size of the screen and the like by an input means for setting from the outside such as a keyboard. The display data from the display data generating circuit 5 is input to the display device 9.

The operation of such a configuration will be described. Explaining the basic signal flow, the input signal is subjected to analog processing such as attenuation and amplification in the front end 1 and then converted into a digital value in the A / D converter 2 and stored in the acquisition memory 3. It The display memory 4 stores the data processed by the display data generating circuit 5. The data processing performed by the display data generation circuit 5 is the arithmetic processing for enlarging / reducing the data stored in the acquisition memory 3 on the screen display, or the reduction or interpolation by thinning the waveform data, etc. It is a calculation process for enlargement, or a combination process with text data or graphic data that is character data when displaying a menu or the like. Therefore, the display data generating circuit 5 generates final display data (for example, a video signal) to be sent to the display 9. The display data output from the display data generating circuit 5 is displayed on the display 6.

Further, the operation of enlarging and reducing the displayed waveform according to the present invention will be described. FIG. 2 shows an example of a display related to this operation. Reference numeral 10 is a display screen, 11 is a waveform display area, and 12 is a menu display area. Further, (a) shows a case where there are few menus and the like displayed in the waveform display area, and (b) shows a case where there are many menus and the like displayed in the waveform display area. The menu setting means 6 determines the range of the display area for a menu or the like by an input from an input means for setting from the outside such as a keyboard. Based on this data, the menu allocating means 7 calculates the size and position of the waveform display area. The calculated result is output as a signal of a plurality of bits to the display data generating circuit 5. Alternatively, the magnification selection means 8 calculates the size and position of the waveform display area by input from the outside such as a keyboard. The calculated result is output as a multi-bit signal to the display data generating circuit 5. The display data generation circuit 5 selects one of the signals according to the setting and displays it. With the above configuration, when only the waveform is displayed, only the waveform can be displayed on the entire display screen, information other than the waveform can be displayed, and the waveform can be displayed without being covered by information other than the waveform. .

The menu setting means 6, the menu allocating means 7, the magnification selecting means 8 and the like described here are made up of software and operate under the control of the CPU.

[0010]

[Effect of the device]

 According to the present invention, since the size of the measured waveform display portion can be arbitrarily set, the waveform display portion can be enlarged / reduced, so that the waveform display portion can be displayed when information other than the waveform is displayed. Can be reduced and displayed on the empty display section, so the display information is not always hidden by the display information other than the waveform display. Has the effect of being able to display in the maximum size.

[Brief description of drawings]

FIG. 1 is a block diagram of the present invention.

FIG. 2 is an explanatory diagram of a display screen.

[Explanation of symbols]

 1 Front End 2 Analog / Digital Conversion 3 Acquisition Memory 4 Display Memory 5 Display Data Generation Circuit 6 Menu Setting Means 7 Menu Assigning Means 8 Magnification Selecting Means 9 Display

Claims (1)

[Scope of utility model registration request] 1. A front end for attenuating and amplifying an amplitude voltage of an input signal or selecting an input frequency, an analog / digital converter for inputting an analog signal from the front end and converting the analog signal into a digital value, An acquisition memory for storing the digital value from the analog / digital converter, a menu setting means for selecting a menu for signal processing by inputting the setting from the outside, and a waveform display by the signal from the menu setting means A menu allocating means that calculates the position and size of the screen area and the area for displaying the menu, and the screen area and the area for displaying the menu etc. to display the waveform from the input of the setting from the outside. Magnification selection means for calculating the position and size of the, and the digital value from the acquisition memory is input,
A display data generating circuit for performing a calculation by setting a screen size or the like by a signal from the menu allocating means or a magnification selecting means, and a display memory for storing the data from the display data generating circuit Provided is a display for displaying the data stored in the display memory output as a display data signal through the display data generation circuit, and the size of the waveform display area and the position on the screen can be selected. Waveform measuring device characterized by.